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NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS

Yıl 2016, Sayı: 3, 41 - 52, 01.09.2016

Öz

The turbulence is one of the most important parameters for internal combustion engines. Enough turbulence formations will result in a better mixing process of air and fuel and it will also enhance flame development. The desired turbulent character can be obtained with a well designed intake port. In this study, swirl and tumble motion investigations were performed for Ricardo E6 Research Engine. The CAD model of the engine cylinder with only intake port and intake valve was prepared and imported to STAR- CCM+ v6.04 software. The energy solver was frozen and segregated solver was used during the solutions. The turbulence model selection was a key point for such an analysis. So, three turbulence models (Realizable k-s, k-ro-SST and LES) were compared. The k-s model was found more suitable and stable for these cases. In our investigation, there were two case studies. One of them was effect of valve lift change on swirl and tumble number while the engine was operated constant speed. The second one was effect of engine speed on swirl and tumble number for a unique valve lift. As it is expected for a gasoline engine, the tumble numbers remain higher than swirl numbers. The valve lift change results showed that while increasing of valve lift increased the swirl numbers but decreased the tumble numbers. This inversely proportional result arises from the momentum transform between the angular and axial motions. Anyway, both dimensionless numbers were increased with the engine speed increasing and it was seen that the engine speed is the most effective parameter for incylinder flow formation

Yıl 2016, Sayı: 3, 41 - 52, 01.09.2016

Öz

Toplam 0 adet kaynakça vardır.

Ayrıntılar

Diğer ID JA23PS42BE
Bölüm Makaleler
Yazarlar

S. Karaaslan Bu kişi benim

E. Hepkaya Bu kişi benim

N. Yücel Bu kişi benim

S. Uslu Bu kişi benim

Yayımlanma Tarihi 1 Eylül 2016
Yayımlandığı Sayı Yıl 2016 Sayı: 3

Kaynak Göster

APA Karaaslan, S., Hepkaya, E., Yücel, N., Uslu, S. (2016). NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS. Uluslararası Yakıtlar Yanma Ve Yangın Dergisi(3), 41-52.
AMA Karaaslan S, Hepkaya E, Yücel N, Uslu S. NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS. FCE Journal. Eylül 2016;(3):41-52.
Chicago Karaaslan, S., E. Hepkaya, N. Yücel, ve S. Uslu. “NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS”. Uluslararası Yakıtlar Yanma Ve Yangın Dergisi, sy. 3 (Eylül 2016): 41-52.
EndNote Karaaslan S, Hepkaya E, Yücel N, Uslu S (01 Eylül 2016) NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS. Uluslararası Yakıtlar Yanma Ve Yangın Dergisi 3 41–52.
IEEE S. Karaaslan, E. Hepkaya, N. Yücel, ve S. Uslu, “NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS”, FCE Journal, sy. 3, ss. 41–52, Eylül 2016.
ISNAD Karaaslan, S. vd. “NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS”. Uluslararası Yakıtlar Yanma Ve Yangın Dergisi 3 (Eylül 2016), 41-52.
JAMA Karaaslan S, Hepkaya E, Yücel N, Uslu S. NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS. FCE Journal. 2016;:41–52.
MLA Karaaslan, S. vd. “NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS”. Uluslararası Yakıtlar Yanma Ve Yangın Dergisi, sy. 3, 2016, ss. 41-52.
Vancouver Karaaslan S, Hepkaya E, Yücel N, Uslu S. NUMERICAL ESTIMATION OF SWIRL AND TUMBLE NUMBERS IN RICARDO RESEARCH ENGINE CYLINDER FOR VARIABLE VALVE LIFTS. FCE Journal. 2016(3):41-52.